Honing implement for chisels, &amp;c.



0. J; LUTHER.

'HONING IMPLEMENT FOR GHISELS, &c. APPLICATION FILED AUGfl, 1913.

1,132,663. Patented Mar. 23, 1915.

Illlln THE NORRIS PETERS C0., PHOTG-LITHOH WASHINGTON, D. C.

CLARENCE J. LUTHER, MILWAUKEE, WISCONSIN, ASSIGNOR TO LUTHER, GRINDER MANUFACTURING COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN.

HONING IMPLEMENT FOR CIIISELS, &c.

Application filed August 1, 1913. Serial N 0. 782,406.

To all whom it may concern:v

Be it known that I, CLARENCE J. LUTHER, a citizen of the United States, residing at Milwaukee, county of Milwaukee, and State of IVisconsin, have invented new and useful Improvements in Honing Implements for Chisels, &c., of which the following is a specification.

My invention relates to improvements in honing implements for chisels, etc.

The object of my invention is to provide a form of tool adapted to not only facilitate the desired movement of the tool over the stone, but which will also hold the tool at the proper angle for properly honing the beveled edge, and willallow for and facilitate swinging movements where a curved edge is to be ground or honed, and prevent swinging movements where a straight edge is to be ground or honed.

In the drawings,Figure 1 is a plan view of an implement embodying my invention, showing a portion of a tool in position for honing. Fig. 2 is a vertical sectional view drawn to a plane cutting the tool longitudinally. Fig. 3 is a detail rear view of the tool holder.

Like parts are identified by the same reference characters throughout the several views.

A stone holder 1 is adapted to receive and retain a stone 2. The holder is provided with raised side walls 3. A tool holder is mounted upon a rod 4, which is adapted to span the stone holder transversely and to slide freely upon the upper margins of the side walls 3. A bar 6, preferably parallel to the rod 4, is supported above said rod by posts 7, and an arm 8, rigidly connected with the rod, carries a rotating disk 10 centrally pivoted to the arm 8 and serving as a tool rest. A clamping screw 12 has threaded bearing in the bar 6 and has a pointed lower end adapted to bear upon the tool blade above the disk 10 and preferably perpendicular to its center of rotation. A pair of arms 14 extend downwardly from, and diagonally to the front and rear of the bar 6, and are longitudinally adjustable thereon, being connected with the bar by a slotted connecting member 16 and apair of set screws 17, which pass through the slots and are engaged in threaded apertures or sockets in the bar. The set screws hold the arms let in planes at right angles to the axes of the bar 6 and rod 4.

A tool, such as the blade 18 of a chisel, is applied to the disk or tool rest 10, and the set screw 12 turned to clamping position, the tool blade being first adjusted longitudinally over' the rest 10 to secure the proper bevel, and being also adjusted laterally to a point where the set screw will bear upon it in a longitudinal central plane. If it is desired to prevent the blade from oscillating, the bracket (comprising member 16 and arms 14) is adjusted with the arms 14 in contact with the side of the tool blade. But if the edge of the tool is rounded, the bracket arms may be moved away from the tool and Patented Mar. 23,1915.

secured at a point where they will limit the and secured in position, it or its handle, may

be grasped and the tool moved in a circular path, the rod 4 sliding upon the raised margins of the stone holder. It is obvious that at all stages of this movement the angle of the tool with reference to the stone will be maintained, and the tool may therefore be ground true and to a uniform bevel. The posts 7 which support the bar 6 are preferablv so located that only one of them will be between the raised side walls 3, so that these posts will not interfere with the freedom of movement of the rod upon said walls.

I claim,

1. A honing implement, comprising a stone holder having raised side margins, a rod adapted to span the holder and to slide freely in all direction upon the margins, a tool rest carried by the rod, and a clamping device supported from the rod in clamping relation to the tool holder.

2. A honing implement, comprising a stone holder having raised side margins, a rod adapted to span the holderand to slide freely in all directions upon the margins, a tool rest carried by the rod, and a clamping device supported from the rod in clamping relation to the tool holder, said tool rest being centrally pivoted to its support and adapted to oscillate with the tool when the tool is moved with a honing motion over the face of the stone.

3. A honing implement, comprising a stone; holder having; raised side; margins, a rod adapted to span the holder and to slide freely upon the margins, a tool rest carried by the rod, and a clamping device supported from the rod in clamping relation to the tool holder, said tool rest being centrally pivoted to its support and adapted to oscillate With the tool when the tool is moved with a honing motion over the face of the stone, together With a bracket adjustably supported from said rod and adapted to be secured .in; position to prevent, such oscillations of the tool.

4. In a honinguimplement,the combination with a supporting rod free to move in all directions eta 0001- rest rotatably supported therefrom, and a. clamping device adapted to engage a tool between it and the tool rest.

5. Ina honing implement, the combination'with' a supporting rod-ofa tool rest tion of a tool rest, a supporting rod for the tool rest, a bar supported from' the rod in a position parallel thereto, and a clamping set screw supported from said bar, said bar and rod being separated suiiiciently to permit thetools topass between them into, contact with the tool rest.

In testimony whereof. lafiix my Signature in the presence of two, Witnesses.

CLARENCE "J. LUTHER.

Witnesses:

LEVERETT C. XVHEELER, IRMA D.. BREMER.

I .Qopies of this patent may be obtained. for five'cents each, by addressing the Commissioner voi, Patents,

Washington, D, C." p 

